Refactored thumbs, new files thumbs.[ch]

Makefile

@@ -1,6 +1,6 @@
 all: sxiv
 
-VERSION=git-20110215
+VERSION=git-20110216
 
 CC?=gcc
 PREFIX?=/usr/local

image.c

@@ -110,32 +110,6 @@ int img_load(img_t *img, const char *filename) {
 	return 1;
 }
 
-int img_load_thumb(thumb_t *tn, const char *filename) {
-	int w, h;
-	float z, zw, zh;
-
-	if (!tn)
-		return 0;
-	
-	if (!_imlib_load_image(filename))
-		return 0;
-
-	w = imlib_image_get_width();
-	h = imlib_image_get_height();
-	zw = (float) THUMB_SIZE / (float) w;
-	zh = (float) THUMB_SIZE / (float) h;
-	z = MIN(zw, zh);
-	tn->w = z * w;
-	tn->h = z * h;
-
-	imlib_context_set_drawable(tn->pm);
-	imlib_render_image_part_on_drawable_at_size(0, 0, w, h,
-	                                            0, 0, tn->w, tn->h);
-	imlib_free_image();
-
-	return 1;
-}
-
 void img_check_pan(img_t *img, win_t *win) {
 	if (!img || !win)
 		return;

image.h

@@ -49,20 +49,11 @@ typedef struct img_s {
 	int h;
 } img_t;
 
-typedef struct thumb_s {
-	int x;
-	int y;
-	int w;
-	int h;
-	Pixmap pm;
-} thumb_t;
-
 void img_init(img_t*, win_t*);
 void img_free(img_t*);
 
 int img_check(const char*);
 int img_load(img_t*, const char*);
-int img_load_thumb(thumb_t*, const char*);
 
 void img_render(img_t*, win_t*);
 

main.c

@@ -27,9 +27,9 @@
 #include <X11/Xutil.h>
 #include <X11/keysym.h>
 
-#include "config.h"
 #include "image.h"
 #include "options.h"
+#include "thumbs.h"
 #include "util.h"
 #include "window.h"
 
@@ -39,13 +39,13 @@ typedef enum appmode_e {
 } appmode_t;
 
 void update_title();
-void render_thumbs();
 int check_append(const char*);
 void read_dir_rec(const char*);
 void run();
 
 appmode_t mode;
 img_t img;
+tns_t tns;
 win_t win;
 
 #define DNAME_CNT 512
@@ -54,9 +54,6 @@ const char **filenames;
 int filecnt, fileidx;
 size_t filesize;
 
-thumb_t *thumbs;
-int tvis, tcols, trows;
-
 #define TITLE_LEN 256
 char win_title[TITLE_LEN];
 
@@ -65,6 +62,7 @@ void cleanup() {
 
 	if (!in++) {
 		img_free(&img);
+		tns_free(&tns, &win);
 		win_close(&win);
 	}
 }
@@ -130,17 +128,13 @@ int main(int argc, char **argv) {
 	win_open(&win);
 	img_init(&img, &win);
 
-	if (options->thumbnails) {
-		thumbs = (thumb_t*) s_malloc(filecnt * sizeof(thumb_t));
-		for (i = 0; i < filecnt; ++i) {
-			thumbs[i].pm = win_create_pixmap(&win);
-			img_load_thumb(&thumbs[i], filenames[i]);
-		}
-	}
+	if (options->thumbnails)
+		tns_load(&tns, &win, filenames, filecnt);
 
 	if (options->thumbnails == 2) {
 		mode = MODE_THUMBS;
-		render_thumbs();
+		tns.first = tns.sel = 0;
+		tns_render(&tns, &win);
 	} else {
 		mode = MODE_NORMAL;
 		load_image();
@@ -179,35 +173,6 @@ void update_title() {
 	win_set_title(&win, win_title);
 }
 
-void render_thumbs() {
-	int i, cnt, x, y;
-
-	tcols = win.w / (THUMB_SIZE + 10);
-	trows = win.h / (THUMB_SIZE + 10);
-
-	x = win.w - tcols * (THUMB_SIZE + 10) + 5;
-	y = win.h - trows * (THUMB_SIZE + 10) + 5;
-	cnt = MIN(tcols * trows, filecnt);
-
-	win_clear(&win);
-
-	i = 0;
-	while (i < cnt) {
-		thumbs[i].x = x + (THUMB_SIZE - thumbs[i].w) / 2;
-		thumbs[i].y = y + (THUMB_SIZE - thumbs[i].h) / 2;
-		win_draw_pixmap(&win, thumbs[i].pm, thumbs[i].x, thumbs[i].y, thumbs[i].w,
-		                thumbs[i].h);
-		if (++i % tcols == 0) {
-			x = win.w - tcols * (THUMB_SIZE + 10) + 5;
-			y += THUMB_SIZE + 10;
-		} else {
-			x += THUMB_SIZE + 10;
-		}
-	}
-
-	win_draw(&win);
-}
-
 int check_append(const char *filename) {
 	if (!filename)
 		return 0;
@@ -287,7 +252,10 @@ unsigned char timeout;
 int mox, moy;
 
 void redraw() {
-	img_render(&img, &win);
+	if (mode == MODE_NORMAL)
+		img_render(&img, &win);
+	else
+		tns_render(&tns, &win);
 	update_title();
 	timeout = 0;
 }
@@ -513,8 +481,11 @@ void run() {
 			FD_SET(xfd, &fds);
 			
 			if (!XPending(win.env.dpy) && !select(xfd + 1, &fds, 0, 0, &t)) {
-				img_render(&img, &win);
 				timeout = 0;
+				if (mode == MODE_NORMAL)
+					img_render(&img, &win);
+				else
+					tns_render(&tns, &win);
 			}
 		}
 
@@ -535,8 +506,9 @@ void run() {
 					break;
 				case ConfigureNotify:
 					if (win_configure(&win, &ev.xconfigure)) {
-						img.checkpan = 1;
 						timeout = 1;
+						if (mode == MODE_NORMAL)
+							img.checkpan = 1;
 					}
 					break;
 				case ClientMessage:

thumbs.c

@@ -0,0 +1,113 @@
+/* sxiv: thumbs.c
+ * Copyright (c) 2011 Bert Muennich <muennich at informatik.hu-berlin.de>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *  
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *  
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ */
+
+#include <stdlib.h>
+
+#include <Imlib2.h>
+
+#include "config.h"
+#include "thumbs.h"
+#include "util.h"
+
+const int thumb_dim = THUMB_SIZE + 10;
+
+void tns_load(tns_t *tns, win_t *win, const char **fnames, int fcnt) {
+	int i, w, h;
+	float z, zw, zh;
+	thumb_t *t;
+	Imlib_Image *im;
+
+	if (!tns || !win || !fnames || !fcnt)
+		return;
+	
+	tns->thumbs = (thumb_t*) s_malloc(fcnt * sizeof(thumb_t));
+	tns->cnt = fcnt;
+	tns->loaded = 0;
+
+	for (i = 0; i < fcnt; ++i) {
+		if (!(im = imlib_load_image(fnames[i])))
+			continue;
+
+		imlib_context_set_image(im);
+
+		w = imlib_image_get_width();
+		h = imlib_image_get_height();
+		zw = (float) THUMB_SIZE / (float) w;
+		zh = (float) THUMB_SIZE / (float) h;
+		z = MIN(zw, zh);
+
+		t = &tns->thumbs[i];
+		t->w = z * w;
+		t->h = z * h;
+
+		t->pm = win_create_pixmap(win, t->w, t->h);
+		imlib_context_set_drawable(t->pm);
+		imlib_render_image_part_on_drawable_at_size(0, 0, w, h,
+		                                            0, 0, t->w, t->h);
+		imlib_free_image();
+	}
+}
+
+void tns_free(tns_t *tns, win_t *win) {
+	int i;
+
+	if (!tns)
+		return;
+
+	for (i = 0; i < tns->cnt; ++i)
+		win_free_pixmap(win, tns->thumbs[i].pm);
+
+	free(tns->thumbs);
+	tns->thumbs = NULL;
+}
+
+void tns_render(tns_t *tns, win_t *win) {
+	int i, cnt, x, y;
+
+	if (!tns || !win)
+		return;
+
+	tns->cols = win->w / thumb_dim;
+	tns->rows = win->h / thumb_dim;
+
+	cnt = tns->cols * tns->rows;
+	if (tns->first && tns->first + cnt > tns->cnt)
+		tns->first = MAX(0, tns->cnt - cnt);
+	cnt = MIN(tns->first + cnt, tns->cnt);
+
+	win_clear(win);
+
+	x = y = 5;
+	i = tns->first;
+
+	while (i < cnt) {
+		tns->thumbs[i].x = x + (THUMB_SIZE - tns->thumbs[i].w) / 2;
+		tns->thumbs[i].y = y + (THUMB_SIZE - tns->thumbs[i].h) / 2;
+		win_draw_pixmap(win, tns->thumbs[i].pm, tns->thumbs[i].x,
+		                tns->thumbs[i].y, tns->thumbs[i].w, tns->thumbs[i].h);
+		if (++i % tns->cols == 0) {
+			x = 5;
+			y += thumb_dim;
+		} else {
+			x += thumb_dim;
+		}
+	}
+
+	win_draw(win);
+}
+

thumbs.h

@@ -0,0 +1,49 @@
+/* sxiv: thumbs.h
+ * Copyright (c) 2011 Bert Muennich <muennich at informatik.hu-berlin.de>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *  
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *  
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ */
+
+#ifndef THUMBS_H
+#define THUMBS_H
+
+#include "window.h"
+
+typedef struct thumb_s {
+	int x;
+	int y;
+	int w;
+	int h;
+	Pixmap pm;
+} thumb_t;
+
+typedef struct tns_s {
+	thumb_t *thumbs;
+	unsigned char loaded;
+	int cnt;
+	int cols;
+	int rows;
+	int first;
+	int sel;
+} tns_t;
+
+extern const int thumb_dim;
+
+void tns_load(tns_t*, win_t*, const char**, int);
+void tns_free(tns_t*, win_t*);
+
+void tns_render(tns_t*, win_t*);
+
+#endif /* THUMBS_H */

window.c

@@ -211,19 +211,21 @@ void win_toggle_fullscreen(win_t *win) {
 	           SubstructureNotifyMask, &ev);
 }
 
-Pixmap win_create_pixmap(win_t *win) {
+Pixmap win_create_pixmap(win_t *win, int w, int h) {
 	if (!win)
 		return 0;
 
-	return XCreatePixmap(win->env.dpy, win->xwin, THUMB_SIZE, THUMB_SIZE,
-	                     win->env.depth);
+	return XCreatePixmap(win->env.dpy, win->xwin, w, h, win->env.depth);
 }
 
-void win_draw_pixmap(win_t *win, Pixmap pm, int x, int y, int w, int h) {
-	if (!win)
-		return;
+void win_free_pixmap(win_t *win, Pixmap pm) {
+	if (win && pm)
+		XFreePixmap(win->env.dpy, pm);
+}
 
-	XCopyArea(win->env.dpy, pm, win->pm, bgc, 0, 0, w, h, x, y);
+void win_draw_pixmap(win_t *win, Pixmap pm, int x, int y, int w, int h) {
+	if (win)
+		XCopyArea(win->env.dpy, pm, win->pm, bgc, 0, 0, w, h, x, y);
 }
 
 void win_clear(win_t *win) {

window.h

@@ -63,7 +63,8 @@ int win_moveresize(win_t*, int, int, unsigned int, unsigned int);
 
 void win_toggle_fullscreen(win_t*);
 
-Pixmap win_create_pixmap(win_t*);
+Pixmap win_create_pixmap(win_t*, int, int);
+void win_free_pixmap(win_t*, Pixmap);
 void win_draw_pixmap(win_t*, Pixmap, int, int, int, int);
 
 void win_clear(win_t*);